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NEW QUESTION 30
Examine the structure of the EMPLOYEES table.
NameNull?Type
———————- ————
EMPLOYEE_IDNOT NULLNUMBER(6)
FIRST_NAMEVARCHAR2(20)
LAST_NAMENOT NULLVARCHAR2(25)
EMAILNOT NULLVARCHAR2(25)
PHONE NUMBERVARCHAR2(20)
HIRE_DATENOT NULLDATE
JOB_IDNOT NULLVARCHAR2(10)
SALARYNUMBER(8,2)
COMMISSION_PCTNUMBER(2,2)
MANAGER_IDNUMBER(6)
DEPARTMENT_IDNUMBER(4)
There is a parent/child relationship between EMPLOYEE_ID and MANAGER_ID.
You want to display the last names and manager IDs of employees who work for the same manager as the employee whose EMPLOYEE_ID is 123.
Which query provides the correct output?

  • A. SELECT m.last_name, e.manager_idFROM employees e LEFT OUTER JOIN employees mon (e.manager_id = m.manager_id)WHERE e.employee_id = 123;
  • B. SELECT e.last_name, e.manager_idFROM employees e RIGHT OUTER JOIN employees mon (e.employee_id = m.employee_id)WHERE e.employee_id = 123;
  • C. SELECT e.last_name, m.manager_idFROM employees e RIGHT OUTER JOIN employees mon (e.employee_id = m.manager_id)WHERE e.employee_id = 123;
  • D. SELECT e.last_name, m.manager_idFROM employees e RIGHT OUTER JOIN employees mon (e.manager_id = m.employee_id)AND e.employee_id = 123;

Answer: C

 

NEW QUESTION 31
You issue the following command to drop the PRODUCTStable:
SQL > DROP TABLE products;
Which three statements are true about the implication of this command? (Choose three.)

  • A. All data along with the table structure is deleted.
  • B. All indexes on the table remain but they are invalidated.
  • C. All views and synonyms on the table remain but they are invalidated.
  • D. A pending transaction in the session is committed.
  • E. All data in the table is deleted but the table structure remains.

Answer: A,C,D

 

NEW QUESTION 32
View the Exhibit and examine PRODUCTS and ORDER_ITEMS tables.

You executed the following query to display PRODUCT_NAME and the number of times the product has been ordered:
SQL>SELECT p.product_name, i.item_cnt
FROM (SELECT product_id, COUNT (*) item_cnt
FROM order_items
GROUP BY product_id) i RIGHT OUTER JOIN products p
ON i.product_id = p.product_id;
What would happen when the above statement is executed?

  • A. The statement would execute successfully to produce the required output.
  • B. The statement would not execute because the ITEM_CNT alias cannot be displayed in the outer query.
  • C. The statement would not execute because inline views and outer joins cannot be used together.
  • D. The statement would not execute because the GROUP BY clause cannot be used in the inline.

Answer: A

 

NEW QUESTION 33
Examine the description of the ORDERStable:

Examine the description of the INVOICEStable:

Examine this query:

Which three rows will it return? (Choose three.)
5 01-MAR-2019

  • A. 4 01-FEB-2019
  • B. 1 <null>
  • C. 3 01-JAN-2019
  • D. 3 <null>
  • E. 2 <null>
  • F.
  • G. 5 <null>

Answer: D,F,G

 

NEW QUESTION 34
……

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